Jushatyria Knowpia

Jushatyria; Temporal range: Middle Triassic, 247–242 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauromorpha
Clade:	Archosauriformes
Clade:	Archosauria
Genus:	†Jushatyria; Sennikov, 1985
Type species
	†Jushatyria vjushkovi; Sennikov, 1985

Jushatyria is an extinct genus of archosaur. Fossils have been found in the Koltaevo III Locality, district of Kumertau near the Ural Mountains in European Russia from the Bukobay Gorizont. The locality dates back to the Ladinian stage of the Middle Triassic. Additional material has been described from a locality on the banks of the Berdyanka River that was previously assigned to a rauisuchid-like archosaur. However, this material differed from the original specimens because it lacked slit-like antorbital openings accompanying the antorbital fossa.^[1] Nesbitt (2009) and Gower and Sennikov (2000) suggested that all material currently referred to Jushatyria most likely does not represent a single taxon.^[2] Thus, Jushatyria is known only from its holotype PIN 2867/5, an incomplete left maxilla. As the maxilla is damaged, many "rauisuchian" characters could not be verified. Jushatyria was reassigned as an indeterminate archosaur on the basis of the presence of an antorbital fossa on the lateral surface of the maxilla.^[3]

References edit

^ Kalandadze, N. N., and Sennikov, A. G. (1985). Novyye reptilii iz Srednego triasia Yuzhnogo Priural'ya. Paleontologicheskii Zhurnal 1985:77–84.
^ Gower, D. J. and Sennikov, A. G. (2000). Early Archosaurs from Russia In: Benton, M. J., Kurochkin, E. N., Shishkin, M. A. and Unwin, D. M., eds., The Age of Dinosaurs in Russia and Mongolia. Cambridge, Cambridge University Press; pp. 140–159.
^ Sterling J. Nesbitt (2009). "The early evolution of archosaurs: Relationships and the origin of major clades". Columbia University (Open Access Dissertation): 1–632.

External links edit

Jushatyria in the Paleobiology Database

[1] Kalandadze, N. N., and Sennikov, A. G. (1985). Novyye reptilii iz Srednego triasia Yuzhnogo Priural'ya. Paleontologicheskii Zhurnal 1985:77–84.

[2] Gower, D. J. and Sennikov, A. G. (2000). Early Archosaurs from Russia In: Benton, M. J., Kurochkin, E. N., Shishkin, M. A. and Unwin, D. M., eds., The Age of Dinosaurs in Russia and Mongolia. Cambridge, Cambridge University Press; pp. 140–159.

[Nesbitt09-3] Sterling J. Nesbitt (2009). "The early evolution of archosaurs: Relationships and the origin of major clades". Columbia University (Open Access Dissertation): 1–632.

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Summary

References edit

External links edit